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What is $2$'s complement of $(101)​_3​$?

  1. $(010)_3$
  2. $(011)_3$
  3. $(121)_3$
  4. $(121)_2$
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1 Answer

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2's compliment of $(101)_3 =222-101=(121)_3$
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thanks
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Option C is the answer
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Answer: